Revert "Add support for source maps in deferred libraries."

tests/compiler/dart2js/source_map_deferred_d2js_validity_test.dart

Index: tests/compiler/dart2js/source_map_deferred_d2js_validity_test.dart
diff --git a/tests/compiler/dart2js/source_map_deferred_d2js_validity_test.dart b/tests/compiler/dart2js/source_map_deferred_d2js_validity_test.dart
deleted file mode 100644
index 2b7191ff45ed078268f57418134ac5a9d0605d53..0000000000000000000000000000000000000000
--- a/tests/compiler/dart2js/source_map_deferred_d2js_validity_test.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-import 'dart:async';
-import 'dart:io';
-
-import 'package:async_helper/async_helper.dart';
-import 'package:compiler/implementation/dart2js.dart' as entry;
-import 'package:compiler/implementation/apiimpl.dart';
-
-import 'source_map_validator_helper.dart';
-import 'compiler_alt.dart' as alt;
-
-void main() {
-  entry.compileFunc = alt.compile;
-
-  asyncTest(() => createTempDir().then((Directory tmpDir) {
-    String file =
-        'tests/compiler/dart2js/source_map_deferred_validator_test_file.dart';
-    print("Compiling $file");
-    Future result = entry.internalMain(
-        [file,
-         '-o${tmpDir.path}/out.js',
-         '--library-root=sdk']);
-      return result.then((_) {
-        Compiler compiler = alt.compiler;
-        Uri mainUri = new Uri.file('${tmpDir.path}/out.js',
-                                   windows: Platform.isWindows);
-        Uri deferredUri = new Uri.file('${tmpDir.path}/out.js_1.part.js',
-                                       windows: Platform.isWindows);
-        validateSourceMap(mainUri, compiler);
-        validateSourceMap(deferredUri, compiler);
-
-        print("Deleting '${tmpDir.path}'.");
-        tmpDir.deleteSync(recursive: true);
-      });
-  }));
-}